EP 0678764 A1 19951025 - Method for making polarization independent silica optical circuits.
Title (en)
Method for making polarization independent silica optical circuits.
Title (de)
Verfahren zur Herstellung von polarisationsunabhängigen optischen Siliziumdioxid-Schaltkreisen.
Title (fr)
Méthode de fabrication de circuit optiques en silice indépendent de la polarisation.
Publication
Application
Priority
US 23152994 A 19940422
Abstract (en)
In accordance with the invention, a polarization independent optical device is fabricated by building the waveguide structure on a silicon substrate, adding a reinforcing layer of glass and removing regions of the silicon substrate underlying the waveguide structure. Alternatively, a reinforcing layer of glass can be added after the silicon in removed. Removal of the silicon underlying the waveguide structure eliminates polarization dependent spectral effects by eliminating the source of compressive strain, and the resulting glass reinforced structures are sufficiently robust for practical applications. <IMAGE>
IPC 1-7
IPC 8 full level
G02B 6/122 (2006.01); G02B 6/12 (2006.01); G02B 6/126 (2006.01); G02B 6/13 (2006.01); G02B 6/132 (2006.01)
CPC (source: EP US)
G02B 6/126 (2013.01 - EP US); G02B 6/132 (2013.01 - EP US); G02B 2006/12038 (2013.01 - EP US)
Citation (search report)
- [XY] EP 0255270 A2 19880203 - NIPPON TELEGRAPH & TELEPHONE [JP]
- [YA] EP 0452972 A2 19911023 - DU PONT [US]
- [A] PATENT ABSTRACTS OF JAPAN vol. 17, no. 7 (P - 1465) 7 January 1993 (1993-01-07)
- [A] PATENT ABSTRACTS OF JAPAN vol. 17, no. 78 (P - 1488) 16 February 1993 (1993-02-16)
- [A] PATENT ABSTRACTS OF JAPAN vol. 17, no. 320 (P - 1558) 17 June 1993 (1993-06-17)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0678764 A1 19951025; JP H07294763 A 19951110; US 5467415 A 19951114
DOCDB simple family (application)
EP 95302432 A 19950412; JP 9575095 A 19950421; US 23152994 A 19940422